Plaintiffs Amend Previously Dismissed Class Action Lawsuit against Columbia Laboratories

Columbia Laboratories, Inc. (NasdaqCM: CBRX) announced today that plaintiffs in the putative class action lawsuit filed against the Company, Actavis, Inc. and certain officers of both companies (the “Defendants”) in the United States District Court, District of New Jersey, entitled In re Columbia Laboratories, Inc., Securities Litigation, which on June 10 was dismissed without prejudice, have filed an amended complaint. The Company continues to believe the case is without merit.

About Columbia Laboratories

Columbia Laboratories, Inc. is a publicly traded specialty pharmaceutical company with a successful history of developing proprietary, vaginally administered products for women’s health indications. The Company receives sales and royalty revenues from CRINONE® (progesterone gel), which is marketed by Actavis, Inc. in the United States and by Merck Serono S.A. in over 60 foreign countries. Columbia's press releases and other company information are available online at www.columbialabs.com.

Safe Harbor Statement Under the Private Securities Litigation Reform Act of 1995: This communication contains forward-looking statements, which statements are indicated by the words “may,” “will,” “plans,” “believes,” “expects,” “anticipates,” “potential,” “should,” and similar expressions. Such forward-looking statements involve known and unknown risks, uncertainties, and other factors that may cause actual results to differ materially from those projected in the forward-looking statements. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date on which they are made. Factors that might cause future results to differ include, but are not limited to, the following: Actavis' and Merck Serono's success in marketing CRINONE for use in infertility in their respective markets; successful development by Actavis of a next-generation vaginal progesterone product for the U.S. market; difficulties or delays in manufacturing; the availability and pricing of third-party sourced products and materials; successful compliance with FDA and other governmental regulations applicable to manufacturing facilities, products and/or businesses; changes in the laws and regulations; the ability to obtain and enforce patents and other intellectual property rights; the impact of patent expiration; the impact of competitive products and pricing; the strength of the United States dollar relative to international currencies, particularly the euro; competitive, economic, and regulatory factors in the pharmaceutical and healthcare industry; general economic conditions; and other risks and uncertainties that may be detailed, from time-to-time, in Columbia's reports filed with the SEC, including, but not limited to, its Annual Report on Form 10-K for the period ended December 31, 2012. Columbia does not undertake any responsibility to revise or update any forward-looking statements contained herein, except as expressly required by law.

CRINONE® is a registered trademark of Actavis, Inc. in the U.S.